BU90002GWZ Datasheet, PDF (13/24 Pages) Rohm – Step-down Switching regulators with Built-in Power MOSFET

BU9000xGWZ series
Datasheet
MODE
2us
5V/div
Vout
50mV/div
ac coupled
LX
200mA/div
Figure 36. Mode Change Response
MODE : Low to High
100
90
80
70
60
50
40
30
20
10
0
0.1
VIN=2.7V
VIN=3.6V
VIN=4.2V
1
10
100
Load current[mA]
1000
Figure 37. Efficiency vs Load current
PWM/PFM Auto mode
1.854
1.836
1.818
VIN=2.7V
VIN=3.6V
VIN=4.2V
1.800
1.782
1.764
0
200 400 600 800
Load current[mA]
1000
Figure 38. Load regulation
PWM/PFM Auto mode
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TSZ22111・15・001
13/21
TSZ02201-0F2F0AG00010-1-2
04.Jul.2012 Rev.001